Environmental Monitoring and Assessment

, Volume 185, Issue 9, pp 7793–7807

Assessment of six Indian cultivars of mung bean against ozone by using foliar injury index and changes in carbon assimilation, gas exchange, chlorophyll fluorescence and photosynthetic pigments

  • Nivedita Chaudhary
  • Suruchi Singh
  • S. B. Agrawal
  • Madhoolika Agrawal
Article

DOI: 10.1007/s10661-013-3136-0

Cite this article as:
Chaudhary, N., Singh, S., Agrawal, S.B. et al. Environ Monit Assess (2013) 185: 7793. doi:10.1007/s10661-013-3136-0

Abstract

Six Indian cultivars of Vigna radiata L. (HUM-1, HUM-2, HUM-6, HUM-23, HUM-24 and HUM-26) were exposed with ambient and elevated (ambient + 10 ppb ozone (O3) for 6 h day−1) level of O3 in open top chambers. Ozone sensitivity was assessed by recording the magnitude of foliar visible injury and changes in various physiological parameters. All the six cultivars showed visible foliar symptoms due to O3, ranging 7.4 to 55.7 % injured leaf area. O3 significantly depressed total chlorophyll, photosynthetic rate (Ps), quantum yield (Fv/Fm) and total biomass although the extent of variation was cultivar specific. Cultivar HUM-1 showed maximum reduction in Ps and stomatal conductance. The fluorescence parameters also indicated maximum damage to PSII reaction centres of HUM-1. Injury percentage, chlorophyll loss, Ps, Fv/Fm and total biomass reduced least in HUM-23 depicting highest O3 resistance (R%).

Keywords

Cultivar Vigna radiata L. Ozone sensitivity Leaf injury Photosynthesis Fluorescence 

Abbreviations

A

Age

Ci

Internal CO2

CO2

Carbon dioxide

Cv

Cultivar

R%

Ozone resistance

DAG

Days after germination

FIP

Foliar injury percentage

F0

Initial fluorescence

Fm

Maximum fluorescence

Fv

Variable fluorescence

gs

Stomatal conductance

N, P and K

Nitrogen, phosphorus and potassium

NFCs

Non-filtered air

NFCs + 10

Non-filtered air + 10 ppb O3

O3

Tropospheric ozone

OTCs

Open top chambers

PAR

Photosynthetically active radiation

ppb

Parts per billion

ppm

Parts per million

Ps

Photosynthetic rate

Tmax

Maximum temperature

Tmin

Minimum temperature

T

Treatment

RH

Relative humidity

WUE

Water use efficiency

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Nivedita Chaudhary
    • 1
  • Suruchi Singh
    • 1
  • S. B. Agrawal
    • 1
  • Madhoolika Agrawal
    • 1
  1. 1.Laboratory of Air Pollution and Global Climate Change, Department of BotanyBanaras Hindu UniversityVaranasiIndia

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